Stable isotope characteristics of precipitation in southeast Siberia
The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied r...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.910061 2023-05-15T15:18:38+02:00 Stable isotope characteristics of precipitation in southeast Siberia Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E LATITUDE: 52.300000 * LONGITUDE: 104.283300 * DATE/TIME START: 2011-06-24T00:00:00 * DATE/TIME END: 2017-04-04T00:00:00 * MINIMUM ELEVATION: 469.0 m * MAXIMUM ELEVATION: 469.0 m 2019-12-16 text/tab-separated-values, 1420 data points https://doi.pangaea.de/10.1594/PANGAEA.910061 https://doi.org/10.1594/PANGAEA.910061 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.910061 https://doi.org/10.1594/PANGAEA.910061 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67, https://doi.org/10.1002/hyp.13571 AWI_Envi DATE/TIME Deuterium excess Irkutsk_prec Irkutsk Russia Polar Terrestrial Environmental Systems @ AWI Sample code/label Sample type Water sample WS δ18O water δ Deuterium Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.910061 https://doi.org/10.1002/hyp.13571 2023-01-20T09:12:58Z The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied region of continental Asia, which has a high potential for isotope-based palaeoclimate research. The dataset revealed distinct seasonal variations: relatively high δ¹⁸O (up to -4‰) and δD (up to -40‰) values characterize summer air masses, and lighter isotope composition (-41‰ for δ¹⁸O and -322‰ for δD) is characteristic of winter precipitation. Our results show that air temperature mainly affects the isotope composition of precipitation, and no significant correlations were obtained for precipitation amount and relative humidity. A new temperature dependence was established for weighted mean monthly precipitation: +0.50‰/°C (r² = 0.83; p < 0.01; n = 55) for δ¹⁸O and +3.8‰/°C (r² = 0.83, p < 0.01; n = 55) for δD. Secondary fractionation processes (e.g., contribution of recycled moisture) were identified mainly in summer from low d excess. Backward trajectories assessed with the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model indicate that precipitation with the lowest mean δ¹⁸O and δD values reaches Irkutsk in winter related to moisture transport from the Arctic. Precipitation originating from the west/southwest with the heaviest mean isotope composition reaches Irkutsk in summer, thus representing moisture transport across Eurasia. Generally, moisture transport from the west, that is, the Atlantic Ocean predominates throughout the year. A comparison of our new isotope dataset with simulation results using the European Centre/Hamburg version 5 (ECHAM5)-wiso climate model reveals a good agreement of variations in δ¹⁸O (r² = 0.87; p < 0.01; n = 55) and air temperature (r² = 0.99; p < 0.01; n = 71). However, the ECHAM5-wiso model fails to capture observed variations in d excess (r² = ... Dataset Arctic Siberia PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(104.283300,104.283300,52.300000,52.300000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Envi DATE/TIME Deuterium excess Irkutsk_prec Irkutsk Russia Polar Terrestrial Environmental Systems @ AWI Sample code/label Sample type Water sample WS δ18O water δ Deuterium |
spellingShingle |
AWI_Envi DATE/TIME Deuterium excess Irkutsk_prec Irkutsk Russia Polar Terrestrial Environmental Systems @ AWI Sample code/label Sample type Water sample WS δ18O water δ Deuterium Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E Stable isotope characteristics of precipitation in southeast Siberia |
topic_facet |
AWI_Envi DATE/TIME Deuterium excess Irkutsk_prec Irkutsk Russia Polar Terrestrial Environmental Systems @ AWI Sample code/label Sample type Water sample WS δ18O water δ Deuterium |
description |
The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied region of continental Asia, which has a high potential for isotope-based palaeoclimate research. The dataset revealed distinct seasonal variations: relatively high δ¹⁸O (up to -4‰) and δD (up to -40‰) values characterize summer air masses, and lighter isotope composition (-41‰ for δ¹⁸O and -322‰ for δD) is characteristic of winter precipitation. Our results show that air temperature mainly affects the isotope composition of precipitation, and no significant correlations were obtained for precipitation amount and relative humidity. A new temperature dependence was established for weighted mean monthly precipitation: +0.50‰/°C (r² = 0.83; p < 0.01; n = 55) for δ¹⁸O and +3.8‰/°C (r² = 0.83, p < 0.01; n = 55) for δD. Secondary fractionation processes (e.g., contribution of recycled moisture) were identified mainly in summer from low d excess. Backward trajectories assessed with the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model indicate that precipitation with the lowest mean δ¹⁸O and δD values reaches Irkutsk in winter related to moisture transport from the Arctic. Precipitation originating from the west/southwest with the heaviest mean isotope composition reaches Irkutsk in summer, thus representing moisture transport across Eurasia. Generally, moisture transport from the west, that is, the Atlantic Ocean predominates throughout the year. A comparison of our new isotope dataset with simulation results using the European Centre/Hamburg version 5 (ECHAM5)-wiso climate model reveals a good agreement of variations in δ¹⁸O (r² = 0.87; p < 0.01; n = 55) and air temperature (r² = 0.99; p < 0.01; n = 71). However, the ECHAM5-wiso model fails to capture observed variations in d excess (r² = ... |
format |
Dataset |
author |
Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E |
author_facet |
Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E |
author_sort |
Kostrova, Svetlana S |
title |
Stable isotope characteristics of precipitation in southeast Siberia |
title_short |
Stable isotope characteristics of precipitation in southeast Siberia |
title_full |
Stable isotope characteristics of precipitation in southeast Siberia |
title_fullStr |
Stable isotope characteristics of precipitation in southeast Siberia |
title_full_unstemmed |
Stable isotope characteristics of precipitation in southeast Siberia |
title_sort |
stable isotope characteristics of precipitation in southeast siberia |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.910061 https://doi.org/10.1594/PANGAEA.910061 |
op_coverage |
LATITUDE: 52.300000 * LONGITUDE: 104.283300 * DATE/TIME START: 2011-06-24T00:00:00 * DATE/TIME END: 2017-04-04T00:00:00 * MINIMUM ELEVATION: 469.0 m * MAXIMUM ELEVATION: 469.0 m |
long_lat |
ENVELOPE(104.283300,104.283300,52.300000,52.300000) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Siberia |
genre_facet |
Arctic Siberia |
op_source |
Supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67, https://doi.org/10.1002/hyp.13571 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.910061 https://doi.org/10.1594/PANGAEA.910061 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.910061 https://doi.org/10.1002/hyp.13571 |
_version_ |
1766348829016195072 |